JPH0794227A - Terminal fixing device for connector - Google Patents

Abstract

PURPOSE:To surely hold a terminal block of long and narrow shape so as to prevent it from bending. CONSTITUTION:Terminal blocks 5, 6, in the vicinity of point ends thereof, are positioned relating to a housing 3 by stop parts 7, to hold a stop condition of these stop parts 7 by a fixing member 11. Thus even in a structure for fixing the terminal block and housing of separate unit to a terminal base, the long and narrow terminal block easily deformed can be surely fixed to the housing, and deflecting the terminal block is eliminated to facilitate connecting a coupler.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a terminal fixing device in a connector in which a coupler is inserted at the tip of a housing to connect a terminal plate in the housing and a terminal in the coupler to each other. is there.

[0002]

2. Description of the Related Art In this type of connector, if the terminal plate has an elongated shape, the terminal plate may bend when the mating coupler is attached to the tip of the housing, which may make connection difficult. This is because the terminal plate is supported only by the base part and the connection side of the tip is a free end, so the rigidity tends to be insufficient,
This is because the terminal board is easily deformed. Therefore, in the case where the terminal plate is elongated and the rising portion is long, the terminal plate is generally insert-molded and integrated with the housing. However, such insert molding has a problem in that the mold is complicated and a large amount of molding material is required, which increases the molding cost.

[0003]

SUMMARY OF THE INVENTION The present invention focuses on such a problem and makes it possible to securely hold a terminal plate while having a structure in which a separate terminal plate and housing are fixed to a terminal base. This was done as an issue.

[0004]

In order to achieve the above object, according to the present invention, the base of an elongated terminal plate is fixed to a terminal base, and a housing having a shape surrounding the terminal plate rising from the terminal base is provided. In the connector configured to connect the terminal board and the terminal in the mating coupler to each other by fixing the mating coupler to the tip of the housing and forming the mating coupler on either one of the terminal board and the housing. An engaging portion for positioning the terminal plate with respect to the housing is provided in the vicinity of the tip of the terminal portion by engaging the other concave portion or hole with the convex portion formed on the other side, and the engaging portion is inserted and fixed in the housing. A fixing member for holding the stopper in a locked state is provided.

[0005]

The terminal plate is securely fixed to the housing and deformed by locking the terminal plate by positioning the terminal plate by locking the convex part in the recess or the hole of the locking part. To be prevented. Therefore, the terminal plate does not bend even when the mating coupler is attached to the tip of the housing,
There is nothing difficult to connect.

[0006]

[Embodiment] Next, an embodiment of a terminal connecting portion on the rear surface of an automobile ignition switch will be described.

FIG. 1 is an overall side view, in which 1 is an ignition switch, 2 is its terminal base, 3 is a housing fixed to the terminal base 2, and 4 is a coupler. As shown in FIG. 2, a plurality of terminal plates 5 and 6 are provided inside the housing 3, and the ignition switch 1
The connection of these terminal plates 5 and 6 can be switched according to the rotation operation of the key from the left side of FIG. These terminal plates 5 and 6 have an elongated shape, the base portions 5a and 6a are fixed to the terminal base 2, and the terminal portions 5 rise from the terminal base 2 and the connecting portions 5b and 6b at the tips are connected to the housing 3.
Are mounted so as to be arranged in parallel with each other in the tip end portion of the connector, and by connecting the coupler 4 to the tip end of the housing 3 as shown by the arrow in FIG. 1, the coupler 4 is connected to a terminal (not shown) in the coupler 4. 2a is a terminal fixing rivet, 3a is a housing fixing screw, 3b is an opening hole provided in the upper surface of the housing 3, and 4a is a lead wire connected to a terminal in the coupler 4.

Reference numeral 7 denotes a locking portion, which is a hole 7 formed in a portion slightly inside the connecting portions 5b and 6b of the terminal plates 5 and 6, respectively.
a, and correspondingly, convex portions 7b formed by projecting support walls 8 and 9 on the inner surface of the housing 3 and forming respective end edges thereof.
It consists of and. The positions of the hole 7a and the convex portion 7b are
When the housing 3 is fixed to the terminal base 2, the projection 7b is inserted into the hole 7a as shown in FIG. 4 so that the terminal plates 5 and 6 are positioned with respect to the housing 3.

Reference numeral 11 denotes a fixing member, and FIG. 2 shows a state in which the fixing member 11 is inserted into the tip of the housing 3, FIG.
FIG. 5 is a diagram showing a state in which each is not inserted, and FIG.
FIG. 3 is a perspective view of this fixing member 11. That is, the fixing member 11 is provided with the pressing plate 11a and the knob portion 11b, and the terminal hole 1 into which the terminal plate 5 is inserted is inserted into the pressing plate 11a.
1c is provided, and the locking claws 1 are provided on the side edge and the upper edge, respectively.
1d and 11e are formed, and the lower edge is a pressing surface 11f that comes into contact with the terminal plate 6. The terminal hole 11c
A guide surface 11g having a tapered shape is provided on the terminal board insertion side.

6 and 7 show the tip of the housing 3 in FIG.
6 is a view seen in the direction of arrow A in FIG. 6, FIG. 6 shows a state in which the fixing member 11 is not inserted, and FIG. 7 shows a state in which the fixing member 11 is inserted. In FIG. 6, the terminal plates 5 and 6 are shown by chain lines. . The housing 3 is formed with openings 12 through which the terminal plates 5 and 6 are inserted between the support walls 8 and 9, and the locking claws 11d of the fixing member 11 engage with both side edges of the openings 12. Locking step 13
However, the base of the support wall 8 is formed with a locking step 14 with which the locking claw 11e is engaged.

When fixing the housing 3 to the terminal base 2, the housing 3 is assembled to the terminal base 2 in a predetermined posture such that the terminal plates 5 and 6 are inserted into the opening 12, and then the fixing screw 3a is attached.
Fix with. As a result, the terminal plates 5 and 6 inserted into the opening 12 are supported by the terminal plate 5 as shown by the chain line in FIG.
And the terminal plate 6 is in contact with the edge of the support wall 9 and the convex portions 7b are inserted into the holes 7a of the locking portions 7, respectively. 6
Is positioned.

The fixing member 11 is inserted into the housing 3 in this state. That is, while holding the knob portion 11b by hand, insert each terminal plate 5 into the corresponding terminal hole 11c,
Furthermore, the locking claws 11d and 11e are respectively locked stepped parts 13 and 1
The fixing member 11 to the housing 3
Insert at the tip of. As a result, the fixing member 11 is fixed to the housing 3, and each terminal plate 5 is attached to the terminal hole 11
The protrusion 7b cannot be removed from the hole 7a by being restrained by c, and the terminal plate 6 is pressed by the pressing surface 11f of the fixing member 11 so that the protrusion 7b cannot be removed from the hole 7a. Plates 5 and 6 are housing 3
Securely fixed to.

Therefore, even if the terminal plates 5, 6 are elongated and the distance from the base portions 5a, 6a to the connecting portions 5b, 6b at the tips is long, they are fixed to the housing 3 near the tips and are not deformed. There is no possibility that the terminal plates 5 and 6 will bend when the coupler 4 is inserted and the connection will be difficult, and the connection will be easy and the reliability of the connection portion will be improved. Further, the assembled fixing member 11 can be removed from the housing 3 by inserting a tool such as a driver from the opening 3b of the housing 3 and removing the locking claws 11d and 11e from the locking step portions 13 and 14.
Therefore, the housing 3 can be replaced and the serviceability is improved.

Although the above-described embodiment is an example of the terminal connecting portion on the rear surface of the ignition switch of the automobile, the present invention is widely applied to various other switches, terminal portions of electric parts, general connectors and the like. be able to. Also,
In the embodiment, the engaging portion 7 is formed by the holes 7a of the terminal plates 5 and 6 and the convex portion 7b of the housing 3, but a concave portion is formed instead of the hole, or a convex portion is formed on the terminal plate on the housing. An appropriate structure can be adopted such as providing a recess or a hole.

[0014]

As is apparent from the above description, in the connector terminal fixing device of the present invention, after the terminal plate is positioned in the vicinity of the tip end of the terminal plate with respect to the housing by the engaging portion composed of the concave portion or the hole and the convex portion. The locking state is held by a fixing member.

Therefore, although the terminal plate and the housing which are separate bodies are fixed to the terminal base, the terminal plate which is long and easily deformed is securely fixed to the housing to prevent the bending of the terminal plate when the coupler is inserted. Since it can be eliminated, it is possible to obtain a highly reliable connector that can be easily connected by a relatively inexpensive structure that is not insert molding.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a side view showing a cross section of a main part of the embodiment.

FIG. 3 is a side view showing a cross section of the main part of the embodiment.

FIG. 4 is a perspective view of a locking portion of the embodiment.

FIG. 5 is a perspective view of a fixing member of the embodiment.

FIG. 6 is a front view of the tip of the housing of the embodiment.

FIG. 7 is a front view of the tip of the housing of the embodiment.

[Explanation of symbols]

 2 terminal base 3 housing 4 coupler 5,6 terminal plate 5a, 6a base part 5b, 6b connection part 7 locking part 7a hole 7b convex part 11 fixing member 11c terminal hole 11d, 11e locking claw 11f pressing surface

Claims (1)

[Claims] 1. A base of an elongated terminal plate is fixed to a terminal base, a housing surrounding the terminal plate rising from the terminal base is fixed to the terminal base, and a mating coupler is attached to the tip of the housing. In a connector configured to mutually connect the terminal plate and a terminal in a mating coupler, by locking a concave portion or a hole formed in one of the terminal plate and the housing with a convex portion formed in the other A locking portion for positioning the terminal plate with respect to the housing is provided near its tip, and a fixing member for holding the locking portion in a locked state by being inserted and fixed in the housing is provided. Characteristic connector terminal fixing device.